HTTP 1.1

Using HTTP 1.1, you can send multiple POST requests in a single
session. However, when using HTTP 1.1, be aware of the following:

While a report suite is
collecting time-stamped data, it cannot collect data through the standard
JavaScript beacon method.

Adobe data collection
servers limit the number of HTTP requests per HTTP session. To account for
this, make sure your application can detect closed sessions and respond
appropriately.

Adobe data collection
servers observe HTTP 1.1 rules when chunking content. Make sure your
application properly interprets the chunking numbers provided in the Online
Marketing Suite server response to your data insertion. For example, in the
following HTTP 1.1 response, the numbers
68 and
0 are chunking numbers, which represent the number of
bytes to read before the next chunk.

The data insertion load balancers are optimized for small packets.
As a result, the load balancer will frequently break a persistent HTTP
connection and cause the server to appear unresponsive. Your insertion process
should check for a failed connection before upload and re-establish the
connection as necessary.